16863780842 has 16 divisors (see below), whose sum is σ = 25377045120. Its totient is φ = 8404798368.

The previous prime is 16863780841. The next prime is 16863780863. The reversal of 16863780842 is 24808736861.

It is not an unprimeable number, because it can be changed into a prime (16863780841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160063 + ... + 1174509.

It is an arithmetic number, because the mean of its divisors is an integer number (1586065320).

Almost surely, 2^16863780842 is an apocalyptic number.

16863780842 is a deficient number, since it is larger than the sum of its proper divisors (8513264278).

16863780842 is a wasteful number, since it uses less digits than its factorization.

16863780842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16285.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 16863780842 in words is "sixteen billion, eight hundred sixty-three million, seven hundred eighty thousand, eight hundred forty-two".